一篇How to be a great person 的英语作文(50词左右)
题目
一篇How to be a great person 的英语作文(50词左右)
答案
第一篇how to be a good person,every day i think about it.as q good person ,you must be kind-hearted,you should often help the one who is in difficulty,and you should not tell lies to others,if you can...
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已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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